Berg Castle, Medieval castle in Mechernich, Germany.

Berg Castle is a medieval fortress in Mechernich featuring thick stone walls, towers, and a moat that reflect the military building style of the era. The complex includes multiple buildings and courtyards that show how such a castle served both as a residence and a defensive stronghold.

The castle was built in the Middle Ages as a fortification and administrative center for the surrounding lands and held this role for several centuries. Like many fortresses in the region, it changed its form and purpose through the wars and political upheavals of its time.

The name Berg is documented as early as 699, when Saint Willibrord received the villa Berg from Irmina of Oeren. Since the 18th century the castle has been leased as a farm, which is why visitors today see an agricultural estate rather than a noble residence.

The castle stands at the northeastern edge of the Eifel in the Berg district of Mechernich. The complex consists of a free-standing manor house with a tower and a former outer bailey (Vorburg) set to its northeast; the two parts are separate structures, so plan to view both.

Below today's lowland castle, a hill in the valley probably holds the remains of the older castle from the late 9th century. The site also lies where two historic roads met, which explains its role as a refuge and protective castle against raids.